Fluid-operable lubricator and feeder for engines



Sept. 21 1926.

F. K. MURPHY ET AL FLUID OPERABLE LUBRICATOR AND FEEDER FOR ENGINES I Filed July 6, 1925 1'59) PM FETTEKEE.

ATTORNEYS.

Patented Sept. .21, 1925.

333p MURPHY AND RAY W. RET'IE'QER, or'INnIA APoLIs, INDIANA.

rLuIn-orERABLr. LUBRICATOR AND FEEDER'YFOR ENGINES,

Application filed July 6. 1925.; Serial No. 41,772.-

This invention relates to a force feed lubricator and distributor for locomotives and stationary engines. h

Thechiet ohjectof the invention is to provide a positive supply pf lubricantto an encat-or by constantly applied fluid pressure employed inthe prime mover and associating therewith a distributor of a novel character also operable by fluid pressure employed in the prime mover. In the latter instancethe d stributor is operable by. the differential diaphragm .pi.:essures,the larger diaphragm being. associated with the" lower pressure which is intermittently applied.

The full nature of the invention Will be understood from the accompanying drawings and the following description and claimsf l l i In the drawings Fig. 1 is a front view of a l ocomotive'showing the invention associated therewith, the several parts of the piping being shown diagrammatically. Fig. 2 is a'side elevational view of the same. Fig. is a central sectional view through the distrih'utor' Figffis"a sectional View tazen on unset or imam thieidirection ofthe arroyvs'and is of the lubricator. is alongitudina] sectional View taken on line 5 -5 of ,Fig'f 6 and in the direction of the arro 'vs and is of the lubricator and the po'wer'unit directly connected thereto. I Fig. 6 is an end elevat on of'th'e lubricator, the turbine construction being shown dotted.

In thedrawings llindicates a locomotive having aboiler 12,. cylinders 13 and ,13 'and supply lines 1 1 and'lli"Associated with each supply line is ad stributor herein in- (ligated respectively by the numerals 15 radis Each distributor is connected by a conduit 16 to 'tl1e" sourc 'e or" high pressure steam, iOXSfit, the conduit :14. A'cond uit 17 is connected' to the distrilouto'r at one end and "to the engine cylinder supply at the other, thus subjecting the distributor to intermittent pressure A conduit 18 is connected to the lubricatol"indicated-generally by the numeral 191' "Said conduit 18 constitutes a high pressure lubricant supply line and serves to supply oil from the lubricator to the distributor 15. i A line 20 con nects the distributor to the'supply line connected to the cylinder and thus the line s 16 and "20 are connected through.the distributor and form a by-pass leading from and" thence to the supply line 1401? the engine. A I

, Reference will now be had to F ig. I 3, wlielrein'the' details of the distributor device are shown. The body portion indicated generally by' the numeral 15 includes a pair of transverse j communicating channels 21 and.

.IhechannelQl communicates at one end yvithfconduit 16 and at the other end 'vvith the conduit with lubricant under high f p ressure. -Tlie ca es carried the. distributor 15 includes alval'vechamber 34 and thisvalve chamber communicates the conduit ivhen, the valve 27 isflremo ved from its seat 26 through the predeterminedfit betifveen the stem. .31 and thesleeve 25. f I V jllhe fp osite end of the body 15 includes av clianiberflo "which is sejcured di W M ii bushing 23 hasatapered. outlet or passage 24; discharging into said stem 28 for aligning plira'gm 36 retained in p'o'sition aretainer 87, in turn-supporting another diaphragm 3S, likewise 'retainedln JDQSliZlQi'l Within a chamber39. An ad ustable stoplO is providedior the. diaphragm 38 and a stopffil' carried byt-he diaphragm 38 has engagement withldiaphragm 86. The operation ofthe distributor device is as follo v's'z 'Vvhenever steam is" supplied to thefengine cylinder, and preferably the "from end; and thisfoccurs intermittently, pres safe is applied to chamber 39. Diaphragm 38 :inoves toivard the left I with abutment 41 This engagesfiui aphmg 1es and'fmoves the same Ito e gage the end of the stem" 31 and unseat-the valve 27' from its 1 seat '26. This 1 )e1*mitsthe lubricant ".fsuppli'ed by line 18 Linderfhig 1 pressurefto, passfrom. the valve chamber 84 to 'the" passage 21."

High pressure steam also i is passed through the body 15 from conduit 16 to conduit 20. Through the nozzle arrangement- 2 and jet action, the steam'carries with it a predetermined by the fit and travel of sternBl in bushing 22 and by the regulated opening of the valve, the latter being adjusted through abutment 30. lVhen the steam pressure supplied to the chamber 39 is released by 38 to its original position.

being exhausted to the atmosphere or passed into alow pressure cylinder or to accessories as is the common practice, the diaphragm 36 becomes effective and returns diaphragm Said diaare limited in their travel to the right by abutment 41 and the adjustable stop 40. At the same time, the spring 29 has seated the valve 27 and the lubricant phragms supply is discontinued. Upon failure of the steam supply it will be readily apparent that the spring 29 cuts off the lubricant supplv. Thus the distributor is adapted to' withliold the lubricant from the device at such times as the movable parts are not wheel 52 provided with turbine vanes or blades 53 upon the periphery or side thereof.

A nozzle 54L is connected by a line 55 to the source of high pressure steam, towit, the

supply pipe or conduit 14. The steam,

after engaging the turbine blades and causing the turbine wheel to rotate, passes outwardly and exhausts through the port or passage 56. This is connected to the eX- haust pipe of the engine, or the same may be connected to a low pressure cylinder, atmosphere or to accessories as is the customary practice.

The lubricator housing 19 supports or includes a lubricant containing reservoir 59 which through a conduit 60, preferably check controlled, communicates with a 7 pump chamber 61 cylindrical in outline. A

rotatable cylindrical piston 62 is eccentrically mounted within the cylindrical chamber 61 and is carried by the shaft 63, which shaft see Fig. 5 supports a gear 64 that meshes with a pinion 65 carried by shaft 51. This is for, gear reduction purposes. The discharge conduit 66 is check controlled as at 67 and communicates with the several conduits18. The positions of the inlet and outlet 60 and 66 with respect to the cylindrical chamber 61 may be of any desired angular displacement. Likewise if amount of oil determinable or the intake, or both as desired. The ro tatable eccentrically mounted cylinder 62 is provided with a suitable number of reciprocating pistons or vanes 68. These con:

stitute square plugs with arcuate faces 69 for engaging the cylindrical wall. The cylindrical piston 62 is apertured and sup: ports a boss concentric therewith as at '70 around which is seated a coil spring 71 that bears at its outer end against the rear face of the plunger or plugs 68 for normally forcing the arcuate face 69 into engagement with the cylindrical wall. The operating face of the pistons 69 is the exposed portion which varies. It will of course be recognized that if the intake is that beyond where the piston 68 hasthe greatest exposet lateral area, the amount of lubricant received in the space between two adjacent pistons will be the greatest. As the cylindrical piston 62 rotates the area of the resultant chamber between the two adjacent lubricating pistons decreases and thus the pressure increases under the well known law of P V.:R T. Thusthe pressure is inversely as the volume.

A by-pass is provided at 72 which is check controlled as at 73 and this operates as a relief valve and discharges surplus lubricant to the reservoir. 7

From the foregoing it will be noted that the lubricator and distributor devices are so arranged that the high pressures are all contained within enclosed casings and. the lubricator and distributor parts are What may be termed directly connected together, thereby eliminating the necessity of the innumerable stufling boxes and, the like heretofore required. If desired, shafts 5i and 63 may be coaxial and integral, in

which event, no stufing boxes will be required, merely a packed partition between chambers 61 and 50. v

The invention claimed is:

In a lubricating system for-fluid operable engines, the combination with a source of high pressure fluid and a source of lower pressure fluid, of a pressure lubricator including an eccentrically mounted rotatable piston, a fluid operable turbine therefore and connected thereto, and a, distributor connected to the lubricator and to the parts to be lubricated and the high pressure fluid source including means differentially sub jected to both fluid pressure sources.

In witness whereof, we have hereunto afliXed our signatures.

' FRED K. MURPHY.

RAY W. RETTERER. 

